"Strong-field phenomena involving lasers, ions, atoms, and molecules"

“涉及激光、离子、原子和分子的强场现象”

• 批准号: 93001-2012
• 负责人: Horbatsch, Marko
• 金额: $ 1.24万
• 依托单位: York University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=545098
• 关键词: Strong; field; phenomena; involving; lasers

1) Some of the most advanced experiments on molecule-laser interactions were carried out in NRC laboratories in Ottawa in the past few years. They aim to explain the process where radiation from a laser is absorbed by a simple molecule, such as nitrogen or carbon dioxide. Electrons temporarily ionized by the laser pulse and accelerated to high velocities are driven back onto the ionic molecule. In the recombination process, where the freed electron is captured back, photons of very high energy are emitted. These photons can form a very-short wavelength coherent pulse themselves. Work is proposed to model the role of different electrons responsible for the binding of the molecule in this ionization-recombination process. A better understanding of the mechanisms involved may serve as a guide to create short-pulse lasers that operate in the X-ray regime.

1)在过去的几年里，渥太华的NRC实验室进行了一些关于分子-激光相互作用的最先进的实验。他们的目标是解释激光辐射被简单分子（如氮气或二氧化碳）吸收的过程。被激光脉冲暂时电离并加速到高速的电子被驱回离子分子上。在复合过程中，释放的电子被捕获回来，发射出非常高能量的光子。这些光子本身可以形成非常短波长的相干脉冲。工作提出了模型的作用，不同的电子负责在这个电离重组过程中的分子的结合。更好地理解所涉及的机制可以作为指导，以创建短脉冲激光器，在X射线制度。